"First hand" refers to the minimum trading unit when investors trade, that is, the minimum trading limit. The regulations in each market are different. As can be seen from the above figure, there are 100 shares in the domestic A-share market, so the number of trading lots must be greater than or equal to 1 (integer multiple). In the futures market, we trade standardized contracts with commodities as the subject matter. In the standardized contract formulated by the exchange,

The first hand is the first user after buying a new product. First-hand goods are things you just bought for your own use. If this person wants to resell something, it becomes second-hand.

(1) One person; Single-handed: Single-handed arrangement | Single-handed support | There are more than 100 people floating, and it is not the only one who shakes the tree. (2) A person's handwriting: single-handed | Its writing style is like a national language | It seems that this painting was not single-handed. (3) One skill, one skill: learn good calligraphy | When did you learn this skill? (4) Give him a hand: Help him with one hand and promote him with one hand. 5 tricks: Don't do this | Cover the sky with one hand. ⑥ Lian is used to mean doing two things at the same time: paying with one hand and delivering with the other.